CVE-2026-40966

In Spring AI, an attacker can bypass conversation isolation and exfiltrate sensitive memory from other users’ chat histories, including secrets and credentials, by injecting filter logic through conversationId. Only applications that use VectorStoreChatMemoryAdvisor and pass user-supplied input as a conversationId are affected.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?version=3.1&vector=AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	US Government Resource
https://spring.io/security/cve-2026-40966	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:vmware:spring_ai::::::::
	cpe:2.3:a:vmware:spring_ai::::::::

History

No history.

Information

Published : 2026-04-28 08:16

Updated : 2026-06-17 10:45

NVD link : CVE-2026-40966

Mitre link : CVE-2026-40966

CVE.ORG link : CVE-2026-40966

JSON object : View

Products Affected

vmware

spring_ai

CWE

CWE-284

Improper Access Control

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